I went to Catholic school for grades 1 through 8, and we did not have a cafeteria, so I brown bagged it the whole time. Being a bit of a picky eater as a kid, the only thing I would eat was tuna fish sandwiches. For 8 years. Every. Single. Day.
I love fresh ahi tuna (sushi/sashimi) and I can eat albacore out of the can in a pinch. But a tuna sandwich. No freakin' way!!!!